90481780

素因数分解:

$2^2\times 5^1\times {\mathrm{1973}}^1\times {\mathrm{2293}}^1$

素因数の和:4275

約数の個数: 24

約数和(自身を含む): 190190952

約数和(自身を除く): 99709172

約数列:

[1, 2, 4, 5, 10, 20, 1973, 2293, 3946, 4586, 7892, 9172, 9865, 11465, 19730, 22930, 39460, 45860, 4524089, 9048178, 18096356, 22620445, 45240890, 90481780]

約数ペア:

[(1, 90481780), (2, 45240890), (4, 22620445), (5, 18096356), (10, 9048178), (20, 4524089), (1973, 45860), (2293, 39460), (3946, 22930), (4586, 19730), (7892, 11465), (9172, 9865)]